Improvement in punching and shearing machines



TATEE MORITZ GLUOK, OF NEW YORK, N. Y.

IMPROVEMENT IN PUNCHING AND SHEARING MACHINES.

Specification forming part of Letters Patent N 0. [92,646, dated July 3,1877 application filed May 19, 1877.

To all whom it may concern Be it known that I, MORITZ GLUGK, of New Yorkcity, in the county and State of New York, have invented a new anduseful Improvement in Punching and Shearing Machines, of which thefollowing is a specification:

This invention relates to a machine having an operating-lever pivoted toa bed-plate and moving as a sector, the periphery-of which is actuatedby an intermediate lever, which is also constructed in the form of asector, and is operated by an actuating-lever. These three principalparts are coupled together, so as to move in harmony, by means of coggedsegments.

To one side of the operating-lever is attached a cutting-blade, whichperforms the shearing operation, and to the other side of it is attachedthe punch, which moves into a die adjustably attached to the bed-plate,so that it may be easily centered to the punch.

In connection with the shearing part of the machine is an adjustablegage, by which the length of the piece cut off may be properlyregulated.

The invention will be readily understood by reference to theaccompanying drawings, of which Figure 1 is a side elevation of themachine. Fig. 2 is a plan of the same. Fig. 3 is a sectional elevationtaken on the line a: 00. Fig. 4 is a detail view of the die-plate,showing the means of adjusting it to position with the punch-center.

The bed-plate A is, preferably, of cast metal, and furnishes all of thehearings or attachments for the operative parts of the machine,

principal among which are the holes or seats for the pivot-pins b c d,which form the fulcrums for the three levers B, O, and D.

The first or operating lever, B, is made in the form of a sector, withcogs b formed on its periphery.

The second or intermediate lever, G, is also formed as a sector, withcogs c on its periphery, and also cogs c on its heel, as shown best inFig. 3.

The lower or inner end of the actuating-lever D is also formed as asector, and has upon it the cogs d.

The other or outer end of the lever D has a socket, d formed in it, intowhich a long wooden lever'may be inserted for the purpose of working themachine.

The cogs al gear into the cogs of the intermediate lever, and so thelever D acts through the cogs d and 0 upon the periphery of the long armof the said lever O, which is thus moved with a great purchase."

In like manner the cogs c on the heel of the lever (3 gear into the cogsb on the periphery of the lever B, which connection also gives apowerful purchase or leverage on the piece B to move it.

It will thus be seen that the parts B O D act together as a powerfulcompound lever.

The lever or operating-plate B carries upon one of its sides theshearing-cutter E, which is secured to the plate B by the screws 0, sothat it may be removed and sharpened or replaced by another at will.

The bed A has a seat, A, upon which pieces will be placed to be out bythe cutter E.

A guard-plate, F, attached to the side of the seat A by means of thescrews f, forms a guard or stop to keep down the rear part of the piecebeing cut, so as to cause the cutter E to cut it off squarely. 1

A gage-plate, G, is attached to a rod, G which is seated in the frame A,and, adjustably fixed in position by the set-screw g, is used to stop atany desired distance in front of the cutter E the piece that is to beout 011', and thereby gage or measure the length of the finished piece,as desired.

To the other side of the lover or plate B from the cutter E, is attacheda punch-stock, H, which has on its end next the lever B a flange orcollar, h, which is embraced by the clam pin g-plates h, which aresecured by means of the screws h to the sides of the lever B, and theseparts are thus easily assembled to gether, but in such a manner that thepunch stock may be readily taken out when required.

The punch-stock slides easily in the direction of its longitudinal axisin the guide I, which is to be securely fixed to the bed-plate A by thescrew-bolts i, that pass through slots a in the top flange of the saidbed-plate, the said slots at being large enough to permit an adjustmentof the guide-piece I to its proper axial position.

The front end of the punch-stock carries the punch H, which may beattached to the stock H in any approved manner.

The punch H fits into an adjustable dieplate, K, which is bolted to thebed-plate by means of the bolts L, which pass through slots k in thesaid plate K, asshown in Fig. 4:, and through slctsoo in the sides ofthe top flange of the bed-plate A.

By means of the adjusting-slots k and a the die-plate may be adjustedto'the exact eenter of the punch H, or a new die-plate or one ofdifferent size may be inserted in the machine when required.

Having described my'1nt entiou,I elaim- In a punching and shearingmachine, the

M. GLUOK. Witnesses:

R101). GERNEB, CHE. RIEGELMAN.

